lnorms {popbio} | R Documentation |
Converts standard normal random values to lognormals with defined means and variances
lnorms(n, mean=2, var=1)
n |
number of observations |
mean |
mean value of the fertility rate |
var |
variance of the vital rate (not standard deviation) |
A vector of random lognormal values.
This function could probably be replaced with built-in functions
for the Log Normal Distribution rlnorm
Original Matlab code by Morris and Doak (2002: 281). Adapted to R by Patrick Nantel, 20 June 2005.
converted Matlab code from Box 8.4 in Morris and Doak (2002)
Morris, W. F., and D. F. Doak. 2002. Quantitative conservation biology: Theory and practice of population viability analysis. Sinauer, Sunderland, Massachusetts, USA.
lnorms(1) # Generate lognormal random fertilities # for a population of 1000 mature individuals with mean fertility of # 3 and inter-individual variance in fertility of 1.5. rndfert <- lnorms(1000, 3,1.5) summary(rndfert) hist(rndfert,40, main="Lognormal random fertilities", xlab="Fertility rate", col="blue")